<template>
  <el-col>
    <el-menu default-active="1" class="el-menu-vertical-demo" @select="handleSelect" @open="handleOpen"
      @close="handleClose" background-color="#545c64" text-color="#fff" active-text-color="#ffd04b" wi>
      <el-submenu index="1">
        <template slot="title">
          <i class="el-icon-folder"></i>
          <span>本地</span>
        </template>
        <el-menu-item-group title="分组1">
          <el-menu-item v-for="(book, index) in books" :key="index" :index=book.bookindex>
            <router-link :underline="false" :to="{ path: '/Ebook', query: { book: book.bookurl } }"
              style="color: white;text-decoration: none;">{{ book.bookname }}
            </router-link>
          </el-menu-item>
        </el-menu-item-group>
        <!-- <el-menu-item-group title="分组2">
          <el-menu-item index="1-3">选项3</el-menu-item>
        </el-menu-item-group>
        <el-submenu index="1-4">
          <template slot="title">选项4</template>
          <el-menu-item index="1-4-1">选项1</el-menu-item>
          <el-menu-item index="1-4-2">选项2</el-menu-item>
        </el-submenu> -->
      </el-submenu>
      <!-- <el-menu-item index="2">
        <i class="el-icon-menu"></i>
        <span slot="title">导航二</span>
      </el-menu-item>
      <el-menu-item index="3">
        <i class="el-icon-document"></i>
        <span slot="title">导航三</span>
      </el-menu-item> -->
      <el-menu-item index="4" disabled>
        <i class="el-icon-setting"></i>
        <span slot="title">额外的</span>
      </el-menu-item>
    </el-menu>
  </el-col>
</template>
<script>
export default {
  props: {
    books: Array,
  },
  methods: {
    handleSelect(key, keyPath) {
      console.log(key, keyPath);
    },
    handleOpen(key, keyPath) {
      console.log(key, keyPath);
    },
    handleClose(key, keyPath) {
      console.log(key, keyPath);
    }
  }
}
</script>
<style>
.el-col {
  width: 100%;
}

.el-menu {
  border: none;
}
</style>